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a2a-protocol-sdk

Umbrella re-export crate for the A2A protocol v1.0 Rust SDK.

Overview

Re-exports a2a-protocol-types, a2a-protocol-client, and a2a-protocol-server
Provides a prelude module with the most commonly used types
Single dependency for applications that need the full SDK

Quick Start

use a2a_protocol_sdk::prelude::*;

Modules

Module	Re-exports
`types`	All A2A wire types (`a2a-protocol-types`)
`client`	HTTP client (`a2a-protocol-client`)
`server`	Server framework (`a2a-protocol-server`)
`prelude`	Most common types from all three

Prelude Contents

Wire types: Task, TaskState, Message, Part, AgentCard, StreamResponse
ID types: TaskId, ContextId, MessageId, ArtifactId
Client: A2aClient, ClientBuilder, EventStream, RetryPolicy
Server: AgentExecutor, RequestHandler, RequestHandlerBuilder, EventEmitter, JsonRpcDispatcher, RestDispatcher
Errors: A2aError, ClientError, ServerError

Features

All features are pass-through to the constituent crates:

Feature	Source Crate
`signing`	`a2a-protocol-types`
`tracing`	`a2a-protocol-client`, `a2a-protocol-server`
`tls-rustls`	`a2a-protocol-client`
`grpc`	`a2a-protocol-client`, `a2a-protocol-server`
`otel`	`a2a-protocol-server`
`websocket`	`a2a-protocol-client`, `a2a-protocol-server`
`sqlite`	`a2a-protocol-server`
`postgres`	`a2a-protocol-server`
`axum`	`a2a-protocol-server`

When to Use

Use a2a-protocol-sdk when building a full application (agent + client)
Use individual crates when you need only types, or only client, or only server

License

Apache-2.0

a2a-protocol-sdk 0.3.0